🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.01 AU - 1.09 AU

Year: 399 Days

Day: 31 Hours

Environment

Temp: 29 °C

Axial Tilt: 172.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 56,682,114 km

• M1: 141,968 km (0.096 R)
• M2: 536,608 km (0.083 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.3 AU - 3.28 AU

Year: 1728 Days

Day: 24.1 Hours

Environment

Temp: -104 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,682,114 km

• M1: 14,212 km (0.064 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.94 AU - 4.1 AU

Year: 2449 Days

Day: 27.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 3.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,682,114 km

• M1: 659,876 km (0.106 R)

Asteroid Belt

Center: 4.42 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.6

Radius: 9.8

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.4 AU - 6.22 AU

Year: 4538 Days

Day: 8.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 56,682,114 km

• M1: 145,409 km (0.113 R)
• M2: 572,062 km (0.061 R)
• M3: 1,355,656 km (0.099 R)
• M4: 2,437,548 km (0.086 R)
• M5: 7,108,292 km (0.093 R)
• M6: 8,192,727 km (0.086 R)
• M7: 9,786,244 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.4

Radius: 10.2

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 8.62 AU - 12.56 AU

Year: 12781 Days

Day: 12.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 56,682,114 km

• M1: 131,197 km (0.116 R)
• M2: 572,062 km (0.099 R)
• M3: 1,099,544 km (0.078 R)
• M4: 1,593,068 km (0.11 R)
• M5: 2,361,552 km (0.101 R)
• M6: 3,075,882 km (0.102 R)
• M7: 3,509,117 km (0.067 R)
• M8: 3,873,986 km (0.076 R)
• M9: 5,770,738 km (0.062 R)
• M10: 6,586,495 km (0.089 R)
• M11: 8,354,891 km (0.028 R)
• M12: 9,447,405 km (0.072 R)
• M13: 12,088,854 km (0.109 R)
• M14: 13,993,684 km (0.076 R)
• M15: 14,849,234 km (0.098 R)
• M16: 15,255,542 km (0.07 R)
• M17: 16,161,656 km (0.045 R)
• M18: 16,519,644 km (0.084 R)
• M19: 19,983,284 km (0.088 R)
• M20: 21,067,719 km (0.111 R)
• M21: 23,353,424 km (0.068 R)
• M22: 24,934,375 km (0.032 R)
• M23: 25,897,037 km (0.105 R)
• M24: 27,896,562 km (0.082 R)
• M25: 33,689,141 km (0.052 R)
• M26: 35,103,888 km (0.058 R)
• M27: 36,435,010 km (0.077 R)
• M28: 37,299,387 km (0.081 R)
• M29: 38,304,086 km (0.105 R)
• M30: 40,762,129 km (0.085 R)
• M31: 42,775,716 km (0.11 R)
• M32: 44,293,835 km (0.103 R)
• M33: 46,565,628 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.1

Radius: 8.2

Gravity: 13.03 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 9.18 AU - 12.38 AU

Year: 13126 Days

Day: 8.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 56,682,114 km

• M1: 102,175 km (0.041 R)
• M2: 654,341 km (0.112 R)
• M3: 1,234,781 km (0.117 R)
• M4: 1,528,441 km (0.069 R)
• M5: 4,300,340 km (0.084 R)
• M6: 4,585,025 km (0.051 R)
• M7: 4,882,426 km (0.055 R)
• M8: 5,515,823 km (0.077 R)
• M9: 7,383,553 km (0.067 R)
• M10: 8,607,861 km (0.094 R)
• M11: 9,799,109 km (0.073 R)
• M12: 10,293,979 km (0.07 R)
• M13: 11,695,262 km (0.092 R)
• M14: 13,285,637 km (0.047 R)
• M15: 16,657,125 km (0.072 R)
• M16: 24,727,630 km (0.08 R)
• M17: 25,541,592 km (0.077 R)
• M18: 26,268,339 km (0.114 R)
• M19: 27,654,662 km (0.09 R)
• M20: 29,314,002 km (0.106 R)
• M21: 30,456,481 km (0.117 R)
• M22: 32,587,203 km (0.063 R)
• M23: 33,688,992 km (0.105 R)
• M24: 35,324,096 km (0.044 R)
• M25: 37,011,411 km (0.115 R)
• M26: 39,711,054 km (0.078 R)
• M27: 39,987,960 km (0.109 R)
• M28: 41,250,416 km (0.086 R)
• M29: 42,250,478 km (0.03 R)
• M30: 48,120,249 km (0.045 R)
• M31: 56,761,172 km (0.091 R)
• M32: 59,252,575 km (0.095 R)
• M33: 61,816,084 km (0.045 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.4

Radius: 14.2

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 9.88 AU - 14.02 AU

Year: 15320 Days

Day: 8.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,682,114 km

• M1: 176,974 km (0.104 R)
• M2: 801,994 km (0.073 R)
• M3: 1,320,052 km (0.115 R)
• M4: 1,834,219 km (0.116 R)
• M5: 2,702,186 km (0.111 R)
• M6: 3,308,806 km (0.111 R)
• M7: 4,969,791 km (0.09 R)
• M8: 5,581,646 km (0.113 R)
• M9: 6,083,248 km (0.06 R)
• M10: 9,112,754 km (0.053 R)
• M11: 15,663,495 km (0.116 R)
• M12: 19,492,453 km (0.082 R)
• M13: 20,201,248 km (0.097 R)
• M14: 23,209,661 km (0.117 R)
• M15: 25,130,946 km (0.057 R)
• M16: 26,183,667 km (0.091 R)
• M17: 30,928,911 km (0.117 R)
• M18: 38,108,412 km (0.073 R)
• M19: 39,638,349 km (0.07 R)
• M20: 43,717,584 km (0.088 R)
• M21: 48,712,956 km (0.099 R)
• M22: 50,183,653 km (0.09 R)
• M23: 56,007,498 km (0.059 R)
• M24: 59,450,643 km (0.063 R)
• M25: 62,648,895 km (0.056 R)
• M26: 64,582,897 km (0.097 R)
• M27: 65,762,177 km (0.04 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.7

Radius: 5.9

Gravity: 12.14 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 11.17 AU - 13.81 AU

Year: 16370 Days

Day: 19.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 146.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,682,114 km

• M1: 77,940 km (0.039 R)
• M2: 990,039 km (0.029 R)
• M3: 1,571,376 km (0.083 R)
• M4: 2,201,632 km (0.118 R)
• M5: 2,714,453 km (0.074 R)
• M6: 4,511,722 km (0.098 R)
• M7: 4,895,590 km (0.11 R)
• M8: 5,163,371 km (0.066 R)
• M9: 6,217,138 km (0.115 R)
• M10: 8,032,957 km (0.11 R)
• M11: 9,803,298 km (0.097 R)
• M12: 15,334,231 km (0.09 R)
• M13: 18,508,548 km (0.096 R)
• M14: 22,734,688 km (0.057 R)
• M15: 40,250,354 km (0.097 R)
• M16: 42,591,561 km (0.115 R)
• M17: 44,153,961 km (0.109 R)
• M18: 48,455,199 km (0.096 R)
• M19: 51,738,573 km (0.114 R)
• M20: 56,005,553 km (0.041 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 450 - 11,155 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit